Update README.md

[BirdboyBolu]

I made few improvements to the sentences and fixed some missing commas

Summary

Add a short summary of what this Pull Request does in 1-3 sentences in the first paragraph.

Before submitting a Pull Request, please check the following points, depending on the type of PR you're submitting.

Article Checklist

• A table-of-contents marker is present below the article summary, above the first chapter.
• Spell checking software doesn't complain.
• All images are part of the PR, or already in the repository.
• All links are verified to work.
• Language used is (overall) clean, precise and to the point.

Technical Checklist

• Provide a bulleted list of changes that are introduced by this PR.
• Screenshots of before / after for style and layout related changes.